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4-tert-Butylphenol

Also known as: p-tert-Butylphenol, 4-(1,1-Dimethylethyl)phenol, 1-tert-Butyl-4-hydroxybenzene, 4-(2-Methyl-2-propanyl)phenol, Phenol, 4-(1,1-dimethylethyl)-, t-Butylphenol, Lowinox PTBT, EINECS 202-679-0, MFCD00002367

4-tert-Butylphenol (CAS 98-54-4) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C10H14O and a molecular weight of 150.218 g/mol. Key properties include a melting point of 96-101 °C(lit.), a boiling point of 233.7±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 110.9±8.2 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H318 — Causes serious eye damage and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
98-54-4
Jingsj CID
J-1989969-5
Molecular Formula
C10H14O
Molecular Weight
150.218 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point96-101 °C(lit.)
Boiling Point233.7±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point110.9±8.2 °C
Exact Mass150.104462
PSA20.23000
LogP3.17
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.514
Additional Property8.7 g/L (20 ºC)

GHS Safety & Compliance

Corrosion / Health Hazard / Environmental HazardSignal word: Danger
  • H315 — Causes skin irritation
  • H318 — Causes serious eye damage
  • H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2907199090
Summary2907199090 other monophenols VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-tert-Butylphenol?

The CAS number of 4-tert-Butylphenol is 98-54-4.

What are the molecular formula and molecular weight of 4-tert-Butylphenol?

4-tert-Butylphenol has molecular formula C10H14O and molecular weight 150.218 g/mol.

Is 4-tert-Butylphenol hazardous?

4-tert-Butylphenol has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage; H411 — Toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of 4-tert-Butylphenol?

For 4-tert-Butylphenol, Upstream Products: 4-tert-Butylphenylboronic acid, 1-Bromo-4-tert-butylbenzene, 1-tert-Butyl-4-iodobenzene; Downstream Products: 1-tert-Butyl-4-chlorobenzene, Cyclohexane,(1,1-dimethylethyl)-, trans-4-tert-Butylcyclohexanol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-tert-Butylphenol (CAS 98-54-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1989969-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.